(Not sure where I was supposed to file this under.)

Melissa Chan
June 1, 2015

Electron Configuration and Energy Level Diagrams


Electron Configurations

  • shows the specific placement of electrons within an energy level
  • orbitals are the sub-levels of an energy level, and
  • can hold a maximum of two electrons
  • four types of orbitals exist
    • s orbital: single
    • p orbital: group of 3
    • d orbital: group of 5
    • f orbital: group of 7
  • every energy level has an s orbital, p orbitals are found at energy level 2 and above, d orbitals are found at energy 3 and above, f orbitals at energy level 4 and above
  • some orbitals at a higher energy level are closer to the nucleus due to overlapping

Example electron configuration for europium, Eu:

Example short form electron configuration for darmstadtium, Ds.

Homework: none

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